Iām already confused as what I want . I have the 350 standard in .22 on order. I also want a barrel in .30 caliber and had the 350mm kit ordered but got windĀ of there being some tactical forearms On the way and longer barrels too. I canceled my order for the standard 350mm barrel kit. Now I donāt know if I want the 450mm or the 600mm barrel. Without any performance data available all you have to pick from is for looks only. Now I know the 600mm will give me more FPS and fpe but how much more for the extra 6ā of barrel on the 450mm? I donāt like my Crown Continuum with the 600mm barrel on it, just too long for hunting. Like yourĀ carrying a Pennsylvania long rifle. So Iām thinking the 450mm but it is only 4ā longer than the 350mm barrel. How much more will you get out of the extra 4ā of barrel? Hell we donāt even know howĀ the 350mm barrel or the 250mm barrels perform yet. I only see one style of forearm called the Tishina that has top and bottom pica-tinny rails. Is the other version with just m-loc slots going to be available also? Are the barrels going to be available threaded for what ever moderator you want to use? Iām going to have to wait this out for a while before I jump in on my .30 caliber.